Raymond police arrested Douglas Simmons, 52, after an investigation that ran 14 months. Police said they were tipped off he was living in Raymond last year and have been working to confirm their suspicion since then.

Simmons, who served a 22-year sentence for the murder of 6-year-old Michelle Spencer in Norwich, Conn., is mandated to register his address and other information with local police officials. Court records say he sexually assaulted his victim.

He caused outrage in 2008 when he moved to Derry after being released from prison. But the controversy subsided when town councilors announced at an emergency meeting that Simmons had moved back to Connecticut.

Simmons later moved to Manchester, where he is currently listed on the state’s sex-offender registry. Police did not say when he moved to Raymond.